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Why is NFC needed in this case? Regardless of this being a potential security risk (which it is, but it's not my point here), does it provide any additional value over a QR scan, which can easily store a URL or a contact information?
Not needed, but convenient. NFC is enabled by default on most phones so all they have to do is touch the card.
I see your point, but seems the same effort as a QR scan
NFC: hold to card, done. Qr: unlock phone, open camera, scan, confirm opening link.
Granted, it's 4 seconds vs 0,5 second but still.
Contact images, perhaps? Or maybe just aesthetic purposes with however they're choosing to distribute their contacts, and don't want to paste QR codes in places. For contact transfer, I don't think there's much technical advantage to using NFC over a QR code, since QR codes can fit a lot more data than most people realize.